The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 09, 2013
Filed:
Dec. 22, 2008
Applicants:
Yasuo Nakanishi, Kyoto, JP;
Masayuki Sonobe, Kyoto, JP;
Kazuaki Tsutsumi, Kyoto, JP;
Inventors:
Assignee:
Rohm Co., Ltd., Kyoto-shi, Kyoto-fu, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 27/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor light emitting device and a fabrication method for the semiconductor light emitting device whose outward luminous efficiency improved are provided and the semiconductor light emitting device includes a substrate; a protective film placed on the substrate; an n-type semiconductor layer which is placed on the substrate pinched by a protective film and on the protective film, and is doped with an n-type impurity; an active layer placed on the n-type semiconductor layer, and a p-type semiconductor layer placed on the active layer and is doped with a p-type impurity.